Mark O'Brien
Biography
Mark O'Brien (born May 7th, 1984) is a Canadian actor and director. He is best known for playing the role of Des Courtney in Republic of Doyle (2010) and Tom Rendon in Halt and Catch Fire (2014).
Known For
Top 40 Movies
Nuremberg
2025
Arrival
2016
Ready or Not
2019
Marriage Story
2019
Anon
2018
How It Ends
2018
Heartless Disappearance Into Labrador Seas
2008
Topper
2025
How to Plan an Orgy in a Small Town
2015
Bad Times at the El Royale
2018
The Darkest Minds
2018
Parallel
2018
Kin
2018
Shadow of God
2025
Blue Bayou
2021
The Front Runner
2018
Seven Veils
2025
Dennis
2015
Hammer
2019
Falsehood
2025
The One That Got Away
2008
Wanderer
2016
Goalie
2019
State Like Sleep
2019
End of Days, Inc.
2015
The Righteous
2021
The Four Horsemen
2008
The Dark Stranger
2016
Beat Down
2012
Grown Up Movie Star
2009